Actually, it says the opposite - "You see then that a man is justified by works, and not by faith only." (James 2:24)
God created us as rational beings. He does not expect us to deny our rational thought. Our faith in God does not mean we leave our intellect outside the church. If Mormonism had some sort of archeological evidence to back up the claims made within the Book of Mormon, perhaps it would be a more viable system. Mormonism expects the believer to have total blind faith in Joseph Smith's claims - which have NO historical evidence or proof.
Regards
26 For as the body without the spirit is dead, so faith without works is dead also. Also: Ephesians 2:8-9, For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast.